Improvement in self-lighting-lamps



lwlLL'lA-M w. BATCH-ELDER.

Improv em`enlt in Self-Lighting Lamps.

N0. 119,497, Patented Oct. 3,1871.

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Zz L" afornefi UNITED STATES PATENT OFFICE.

WILLIAM W. BATOHELDER, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO HIM- SELFAND MATTHEW RILEY, OF SAME PLAGE.

IMPROVEMENT IN SEiLF-LIGHTING-LAMPS.

Specification forming part of Letters Patent No. 119,497, dated October3, 1871.

To all whom it may concern:

Beit known that I,W1LLIAM W. BATCHELDER, of Boston, in the county ofSuffolk and State of lVIassachusetts, have invented certain new anduseful Improvements in Self- Lighting Lamp- Burners, of which thefollowing' is a specification:

My improvements relate to devices for lighting lamp-burnersautomatically by the ignition of a fuse connected therewith.

In the accompanying drawing, Figure l represents a side elevation of thecap, wick, and fuse-tubes of a self -lighting lamp-burner, thefuse-severing arm being at one extreme of its movement. Fig. 2represents a similar view, the fuse-severing arm being at the extreme ofits other movement. Fig. 3 represents avertical section of the same.

The wick-tube a and burner-caps b c may be of the usual or any approvedconstruction and arrangement. The fuse-tube d is secured to the side ofthe .wick-tube a, and extends into the liquid-chamber ofthe lamp. Itsupper end is on a level with the top ofthe wick-tube, and is provided oneach side with severing-lips c for the igniting instrument, the actionof which will be presently described. Within a slot in the fusetube Iarrange a movable bearded slide, f, connected to the operatin g lever gby a pivoted link, h, for feeding the fuse to be severed. I also arrangewithin a slot in said tube a fixed bearded strip, z', to hold the fusewhen fed above the tube, and prevent it from being pulled back againwithin the tube by the descent of the feeding-slide. The operating leverg is pivoted to a bracket on the fuse-tube d, and thesevering-instrument j is secured to the lever g just back of the saidpivot, so that its severing end will oocupy a position between thefuse-supporting lips c when the lever is in horizontal position and beready to act upon either or both of the lips. The object of this and thedouble lips c is to allow the severing-instrument j to have a doubleaction to ignite the fuse-that is to say, in the event of the failure ofthe fuse to ignite when the lever g is raised to move thesevering-instrument over one lip e, then its movement may be reversed tobite the fuse against the other lip e, and so on back and forth untilthe fuse does ignite. This advantage is of the highest importance in theuse of self-lighting fuses, as it often happens that the action of thecutting-instrument is not `certain in its iirst movement, and thiscapacity fully compensates for such uncertainty. Moreover, by thearrangement of the iiXed barbed strip 1'-, the descent of tliemovable-slide j' will not aiiect the position of the/fuse, and by thismeans I -am enabled to throw the cutter j over both lips of the tubewithout pulling down the fuse. The severing-instrumcnt is benthorizontally at its end, so as to pass directly over the double lips ofthe tube and bear the fuse over upon and against either lip. The feedingbarbed slide is raised and lowered by means of a link, 7L, pivoted to itand the hand-lever, and the slide is kept in position so that its barbswill bite gently into the fuse by'means of a spring, l. The fixed barbedstrip does not project within the inner diameter of the fuse-tube, andthe feedingslide may be pulled out a little laterally by means of awire, n, secured to it and extending beneath the cap so as to behandled. This arrangement allows the fuse to be easily inserted withinits tube at its open end, its lower end being sealed to keep the fusedry.

Having described my invention, I claim- 1. In a self-lightinglamp-burner, the interior fixed barbed check-strip i, in combinationwith the feeding barbed slide f, pivoted link h, and operating lever g,as and for the purpose set forth.

2. The double-supporting lips e of the fusetube, in combination with thesevering-instrument j arranged to pass over and in contact with eitherlip e by a double movement to insure the ignition of the fuse in theevent of the failure to produce an ignition by the iirst movement of thesevering-instrument, as described.

3. In a self-lighting lamp-burner, the combination of the fuse-tube dwith its fixed and sliding barbed strips f t', the double-supportinglips c, the severing-instrumentj with its pivoted link h and operatinghandle g, the several parts being constructed, arranged, and operatingas described.

In testimony whereof' I have hereunto set my hand this 9th day ofSeptember, 1871, in the presence of two witnesses.

WILLIAM W. BAIGHELDER.

Witnesses:

A. E. H. J oHNsoN,

J. W. HAMILTON JOHNSON. (55)

